java中的Map

java中的Map

 

public static void main(String[] args) {
		System.out.println("------HashMap----------");
		HashMap hashMap = new HashMap();
		hashMap.put("a3", "aa");
		hashMap.put("a2", "bb");
		hashMap.put("b1", "cc");
		hashMap.put("a3", "a3");
		for (Iterator iterator = hashMap.values().iterator(); iterator
				.hasNext();) {
			String name = (String) iterator.next();
			System.out.println(name);
		}
		
		System.out.println("-----------linkedHashMap----------------------");
		Map<String, String> linkedHashMap = new LinkedHashMap<String, String>();
		linkedHashMap.put("a3", "aa");
		linkedHashMap.put("a2", "bb");
		linkedHashMap.put("b1", "cc");
		linkedHashMap.put("a3", "a3");
        for (Iterator iterator = linkedHashMap.values().iterator(); iterator.hasNext();) {
            String name = (String) iterator.next();
            System.out.println(name);
        }
	}